Home / 12,790,493.88-17,650,927.38-6,989,275.56

Finding the Fourth Proportional to 12,790,493.88, 17,650,927.38 and 6,989,275.56

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Solution

The fourth proportional to 12,790,493.88, 17,650,927.38 and 6,989,275.56 is: 9,645,225.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790,493.88 : 17,650,927.38 = 6,989,275.56 : x
  2. Step 2: Convert to fraction form
    12,790,493.88/17,650,927.38 = 6,989,275.56/x
  3. Step 3: Cross multiply
    12,790,493.88x = 17,650,927.38 × 6,989,275.56
  4. Step 4: Simplify right side
    12,790,493.88x = 123,367,195,348,368.81
  5. Step 5: Solve for x
    x = 123,367,195,348,368.81/12,790,493.88
  6. Step 6: Final answer
    x = 9,645,225.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.